Safety pike



L. JENSEN ET AL SAFETY PIKE Feb. l8, 1936.

Filed Feb. 19, 1935 I Fig.2

5 m W m 'INVENTORS Patented Feb. 18, 1936 umrap STATES PATENT OFFICE 2Claims.

Our invention relates to pikes and more particularly to the pikes of thetype used in setting telephone and telegraph poles, its primary objectbeing the provision of a device' for avoiding the 5 hazards associatedparticularly with the storage and transportation of the pikes.

Another object of our invention is the provision of a pike having a prodwhich may be positioned in either operative or inoperative position withthe point of the pike entirely concealed and protected in theinoperative position.

Another of our objects is the provision of a pike having a detachableprod with the parts so designed that the prod may be secured inthe pikein either operative or inoperative position.

Another of our objects is the provision of a device for attachment to apike pole and having a reversible prod with an automatic latch forholding the prod in either of two positions.

Another of our objects is the provision of a pike which will absorb theshocks of the impacts to transmit the force of these shocks toward thecenter of the pike pole to avoid the splitting of the pike pole.

Having in view these objects and others which will be pointed out in thefollowing description, we will now refer to the drawing, in which.

Figure 1 is a view in elevation of the upper end portion of a pike polewith our device in place thereon and with the pike in operativeposition.

Figure 2 is a view in median vertical section of the parts shown inFigure 1.

Figure 3 is a view in median vertical section with the prod ininoperative position and with the point of the prod entirely concealedand protected.

The device includes a ferrule ID, a cylinder H and a septum l2 betweenthe ferrule and the cylinder, these parts being of integralconstruction.

absorb the shocks of the impacts. The sep'tum is provided with a centralaperture I3.

The ferrule I0 is frusto-conical in shape, it being provided with thesame taper as the taper at the upper end of the pole It. The prodconsists of a base I5 which is slidable into and out of the cylinder IIand also a point IS, the base l5 and the point It being of integralconstruction. The base I5 of the prod rests squarely on the septum l2which will absorb the shock of the impacts when the pike is rammed withits point I6 into a telegraph pole. By reference to Figures 2 and 3 itwill be seen that the parts are so proportioned that the prod may bereversed into the 65 Figure 3 position with the point It projecting Theseptum I2 is relatively heavy since it must through the aperture l3 ofthe septum. In this position the point N of the prod is entirelysurrounded by metal to thus avoid any injury to the workmen such asfrequently occurs with the pikes at present in use.

To prevent the accidental displacement of the d prod we provide a. latchof simple construction. The prod has a transverse aperture II which isshouldered at an intermediate point as shown in Figures 2 and 3. A pinI8 is seated in this aperture past the shoulder and its inner end isupset to prevent its accidental withdrawal. The pin l8 terminates in abutton l9," said pin being surrounded by a coil spring 20. The cylinderH is also provided with an aperture of suflicient size to looselyreceive the button I 9. The parts are so proportioned that the button l9becomes operative in either the Figure 2 or the ,Eigure 3 position. Theparts may be released from either position by pressing on the button 1'l9 and withdrawing the prod.

In use the parts are arranged as shown in Figures 1 and 2 and the pikeis used in the ordinary manner. When the point It is rammed into thetelegraph or telephone pole the shock of the impact is transmitted tothe septum l2 and no part of this shock reaches the pin I8. This shockis further communicated through the ferrule ID to the wooden pole it.Since this pole is tapered and sincethe ferrule provides a tapered seat,the shock of the impacts will be transmitted in a radial directiontoward the center of the pole. The only effect that this can have on thepole is to compress the wood of the pole and to force the end of thepole further into the ferrule Ill. The pikesatpresent in use soon become'split and splintered at the upper ends of the poles but this cannotoccur in the use of our pike.

The great advantage of our pike resides in the fact that the pointlfi'may be entirely protected by a metallic wall. The pikes at presentin use are exceedingly dangerous to workmen es pecially duringtransportation and'storage'. During transportation they are carried intrucks-and because of their length they extend beyondthe rear end of thetruck. If they are arranged with their points in the forward end of thetruck they become a serious menace to the driver of the truck. If theyare arranged with their points projecting from the rear of the truckthey become a seriousmenace to the workmen who load them onto the truckand remove them from the truck. This is due largely to the fact that thepoints in order to be eflective must be very sharp. Not

only are the points sharp but the edges are also sharp. Seriousaccidents frequently occur but protected from injury due to their comingin contact with objects which would otherwise break the points or dull.the edges.

Having thus described our invention in such full, clear, and exact termsthat its construction and operationwill be readily understood by othersskilled in the. artto which it pertains, what we claim as new and desireto secure by Letters Patent of the United States is:

1. A pike including a hollow cylinder and a socket member and a septumtherebetween, said cylinder and socket and septum being of integralconstruction, a prod having a base portion and a point portion, saidprod being insertable in said cylinder in either of two positions witheither the point portion or the base portion projecting therefrom, saidseptum being provided with a central aperture for receiving the point 01said prod, and a releasable latch for holding said prod in either 01'its two positions.

2. A pike including a irusto-conical socket member for receiving thetapered end portion of a pike pole, a hollow cylinder projectingoutwardly from said socket member, a septum between said socket memberand said cylinder and through the aperture in said septum.

LARS JENSEN. RAY SHERMAN.

